NASA developing Faster-Than-Light travel?

The interstellar spacecraft builds on previous designs that thoeretically allow distant travel by bending space-time… Called IXS Enterprise… Alcubierre's theory was published in 1994 and involved enormous amounts of energy being used to expand and contract space itself - thereby generating a 'warp bubble' in which a spacecraft would travel. Allowing space and time to act as the propellant by pulling the craft through the bubble would be like stepping on an escalator….